Electronic device and stand thereof

Abstract

An electronic device includes a display, at least one hinge assembly and a supporting assembly. The display has a rear surface. The hinge assembly includes a fixing component and at least one assembling component. The fixing component is disposed on the display. The at least one assembling component is pivoted on the fixing component. The supporting assembly is disposed on the assembling component for pivoting relative to the display. The supporting assembly includes a holder and a support that are for moving with each other. The holder is for pivoting relative to the display to have a holding position and a leaning position. The support is for pivoting relative to the display to have a storing position and a supporting position. The holder pivots from the holding position to the leaning position to drive the support to pivot with the holder from the storing position to the supporting position.

What is claimed is: 
     
       1. An electronic device, comprising:
 a display having a rear surface; 
 at least one hinge assembly comprising a fixing component and at least one assembling component, the fixing component disposed on the display, and the at least one assembling component pivoted on the fixing component; and 
 a supporting assembly disposed on the assembling component for pivoting relative to the display, the supporting assembly comprising a holder and a support that are for moving relative to each other, the support comprising at least two sliding rails, the two sliding rails forming at least one first inserting groove, the assembling component being slidably inserted into the first inserting groove so that the supporting assembly is detachably installed on the assembling component, the holder being for pivoting relative to the display to have a holding position and a leaning position, the support being for pivoting relative to the display to have a storing position and a supporting position, the holder being for pivoting from the holding position to the leaning position so as to drive the support to pivot with the holder from the storing position to the supporting position; 
 wherein, the rear surface of the display and the holder keep a first angle when the holder is located at the holding position, the holder leans against the rear surface when the holder is located at the leaning position; and 
 wherein, the support leans against the rear surface when the support is located at the storing position, the rear surface and the support keep a second angle when the support is located at the supporting position. 
 
     
     
       2. The electronic device according to  claim 1 , wherein the display comprises a first case, a second case and an assembling plate, the second case is installed on the first case to form an accommodation space together, the rear surface is located at a side of the second case facing away from the first case, the second case has a through hole extending through two sides of the second case to be connected to the accommodation space, the assembling plate is installed in the accommodation space, the fixing component is installed on the assembling plate, and the at least one assembling component passes through the through hole to be exposed to the outside. 
     
     
       3. The electronic device according to  claim 1 , wherein the display has a bottom edge, the at least one assembling component is for rotating relative to the fixing component around an axis, a distance between the axis and the bottom edge is 0.5 times greater than a height of the display, and the distance between the axis and the bottom edge is 0.75 times less than the height of the display. 
     
     
       4. The electronic device according to  claim 1 , wherein the holder and the support are integrated together, both of the holder and the support are annular frames. 
     
     
       5. The electronic device according to  claim 4 , wherein the at least one assembling component has a positioning hole, the support further comprises an elastic sheet, the elastic sheet is detachably fastened to the positioning hole. 
     
     
       6. The electronic device according to  claim 1 , wherein the holder and the support are integrated together, the holder comprises a first connecting section, a second connecting section and a third connecting section, the first connecting section and the third connecting section are connected to two ends of the second connecting section that are opposite to each other, respectively, the support comprises a fourth connecting section, a fifth connecting section and a sixth connecting section, the fourth connecting section and the sixth connecting section are connected to two ends of the fifth connecting section that are opposite to each other, respectively, the fourth connecting section is connected to the first connecting section, the sixth connecting section is connected to the third connecting section, the number of the at least one first inserting groove is two, the fourth connecting section and the sixth connecting section respectively have the two first inserting grooves, the number of the at least one assembling component is two, the two assembling components are installed in the two first inserting grooves, respectively. 
     
     
       7. The electronic device according to  claim 6 , wherein each of the two assembling components has a positioning hole, both of the fourth connecting section and the sixth connecting section comprise an elastic sheet, the two elastic sheets is detachably fastened to the two positioning holes, respectively. 
     
     
       8. The electronic device according to  claim 6 , wherein when the support is located at the storing position, there is a distance D 1  between an edge of the second connecting section close to the support and the rear surface, the second connecting section has a width D 2 , both of the first connecting section and the third connecting section have a length D 3 , the holder and the rear surface keep an angle  9 , and the following condition is satisfied:
 cot θ=D 1 /(D 3 −D 2 ), wherein the distance D 1  is larger than 18 cm, the width D 2  is larger than 20 cm, and the length D 3  is larger than 60 cm. 
 
     
     
       9. The electronic device according to  claim 1 , wherein the holder and the support are two individual units, the holder has a second inserting groove the at least one assembling component comprises a first assembling component and a second assembling component, both of the first assembling component and the second assembling component are for rotating relative to the fixing component around an axis, the first assembling component and the second assembling component are inserted into the second inserting groove of the holder and the first inserting groove of the support, respectively, so that the support is for rotating relative to the holder. 
     
     
       10. The electronic device according to  claim 9 , wherein the hinge assembly further comprises a blocking component, the blocking component is securely fastened to the first assembling component, the blocking component is located between the support and the display, and when the holder pivots relative to the display, the blocking component presses the support so as to drive the support to leave from the storing position. 
     
     
       11. The electronic device according to  claim 1 , further comprising a first magnetic component and a second magnetic component, the first magnetic component is located at the rear surface of the display, the second magnetic component is located at the support, the first magnetic component is for detachably attracting the second magnetic component so as to position the support at the storing position. 
     
     
       12. An electronic device, comprising:
 a display having a rear surface; 
 at least one hinge assembly comprising a fixing component and at least one assembling component, the fixing component disposed on the display, and the at least one assembling component pivoted on the fixing component; and 
 a supporting assembly disposed on the assembling component for pivoting relative to the display, the supporting assembly comprising a holder and a support that are for moving relative to each other, the holder being for pivoting relative to the display to have a holding position and a leaning position, the support being for pivoting relative to the display to have a storing position and a supporting position, the holder being for pivoting from the holding position to the leaning position so as to drive the support to pivot with the holder from the storing position to the supporting position; 
 wherein, the rear surface of the display and the holder keep a first angle when the holder is located at the holding position, the holder leans against the rear surface when the holder is located at the leaning position; and 
 wherein, the support leans against the rear surface when the support is located at the storing position, the rear surface and the support keep a second angle when the support is located at the supporting position; 
 wherein the hinge assembly further comprises a pivotal shaft, a link-up component, a fastening component, a first elastic component and a second elastic component, the at least one assembling component comprises a first assembling component and a second assembling component, the pivotal shaft comprises a first pivotal section, a second pivotal section and a limiting section, the first pivotal section and the second pivotal section are connected to two sides of the limiting section that are opposite to each other, respectively, the fixing component is securely fixed to the first pivotal section, all of the first assembling component, the link-up component and the second assembling component are pivoted on the second pivotal section, the link-up component is located between the first assembling component and the second assembling component, the first assembling component drives the second assembling component to move with each other via the link-up component, the fastening component is securely fastened to the second pivotal section, the second assembling component is located between the fastening component and the link-up component, the first elastic component surrounds the first pivotal section, two ends of the first elastic component that are opposite to each other are fastened to the fixing component and the first assembling component, respectively, the second elastic component surrounds the second pivotal section, and two ends of the second elastic component that are opposite to each other are fastened to the fastening component and the second assembling component, respectively. 
 
     
     
       13. The electronic device according to  claim 12 , wherein the limiting section has a first limiting notch, the link-up component has a second limiting notch, the first assembling component has a first protrusion and a second protrusion, the first protrusion is slidably disposed in the first limiting notch, and the second protrusion is slidably disposed in the second limiting notch. 
     
     
       14. The electronic device according to  claim 13 , wherein the link-up component has a hook, the second assembling component has a slot, the hook is fastened to the slot so that the link-up component is for driving the second assembling component to move with each other. 
     
     
       15. The electronic device according to  claim 14 , further comprising a plurality of elastic rings, a first locking component and a second locking component, the elastic rings surround the second pivotal section, the first locking component is screwed to the second pivotal section so as to interpose the first assembling component, the link-up component, the second assembling component and the elastic rings between the limiting section and the first locking component, and the second locking component is screwed to the second pivotal section so as to interpose the second elastic component and the fastening component between the first locking component and the second locking component. 
     
     
       16. The electronic device according to  claim 12 , wherein both of the first elastic component and the second elastic component are torsion springs, a torque for driving the second elastic component is greater than the torque for driving the first elastic component. 
     
     
       17. A stand, comprising:
 a supporting assembly comprising a holder and a support that are for moving relative to each other; and 
 a hinge assembly, comprising:
 a pivotal shaft comprising a first pivotal section, a second pivotal section and a limiting section, the first pivotal section and the second pivotal section connected to two surfaces of the limiting section that are opposite to each other, respectively; 
 a fixing component securely fixed to the first pivotal section for being assembled to an electronic device, the electronic device comprising a display; 
 a first assembling component pivoted on the second pivotal section, and the first assembling component assembled to the holder; 
 a second assembling component pivoted on the second pivotal section, and the second assembling component assembled to the support; 
 a link-up component pivoted on the second pivotal section, the link-up component located between the first assembling component and the second assembling component; 
 a fastening component fastened to the second pivotal section, the second assembling component located between the fastening component and the link-up component; 
 a first elastic component surrounding the first pivotal section, two ends of the first elastic component that are opposite to each other are fastened to the fixing component and the first assembling component, respectively; and 
 a second elastic component surrounding the second pivotal section, two ends of the second elastic component opposite to each other are fastened to the fastening component and the second assembling component, respectively. 
 
 
     
     
       18. The stand according to  claim 17 , wherein the limiting section has a first limiting notch, the link-up component has a second limiting notch, the first assembling component has a first protrusion and a second protrusion, the first protrusion is slidably disposed in the first limiting notch, and the second protrusion is slidably disposed in the second limiting notch. 
     
     
       19. The stand according to  claim 17 , wherein the link-up component has a hook, the second assembling component has a slot, the hook is fastening to the slot so that the link-up component is for driving the second assembling component to move with each other. 
     
     
       20. The stand according to  claim 17 , further comprising a plurality of elastic rings, a first locking component and a second locking component, the elastic rings surround the second pivotal section, the first locking component is screwed to the second pivotal section so as to interpose the first assembling component, the link-up component, the second assembling component and the elastic rings between the limiting section and the first locking component, and the second locking component is screwed to the second pivotal section so as to interpose the second elastic component and the fastening component between the first locking component and the second locking component. 
     
     
       21. The stand according to  claim 17 , wherein both of the first elastic component and the second elastic component are torsion springs, a torque for driving the second elastic component is greater than the torque for driving the first elastic component.